/* banner */
.banner{
    width: 100%;
    height: 406px;
    position: relative;
}
.wrapper{
    height: 406px;
    position: relative;
    max-width: 1920px;
    margin: 0 auto;
}
 .swiper-pagination {
    width: 140px;
    height: 50px;
    position: absolute;
    top :360px;
    left: 50%;
    text-align: center;
}
.my-bullet{
    width: 10px;
    height: 10px;
    background: #383838;
    border-radius: 50%;
    float: left;
    margin-left: 10px;
    opacity: 1;
    outline: none ;
}
.my-bullet-active{
    background: #fff;
} 
.wrapper>ul>li>a{
    display: block;
    height: 406px;
}
.wrapper>ul>li:nth-child(1){
    background: url(https://p4.lefile.cn/product/adminweb/2019/07/22/f4fc148a-1f20-47ab-801f-16091d73ea90.jpg) center no-repeat;
}
.wrapper>ul>li:nth-child(2){
    background: url(https://p4.lefile.cn/product/adminweb/2019/07/19/17723c82-7e78-401f-b675-a45423c26ea1.jpg) center center no-repeat;
    
}
.wrapper>ul>li:nth-child(3){
    background: url(https://p3.lefile.cn/product/adminweb/2019/07/15/03a2e147-b0b5-4720-b398-065acd7537c6.jpg) center no-repeat;
   
}
.wrapper>ul>li:nth-child(4){
    background: url(https://p3.lefile.cn/product/adminweb/2019/07/15/9a80d512-0af4-43c5-8b51-4195ac4a6dcf.jpg) center no-repeat;
    
}
.wrapper>ul>li:nth-child(5){
    background: url(https://p2.lefile.cn/product/adminweb/2019/07/17/7c37d98d-3162-4234-b2ef-e2b9297012ad.jpg) center no-repeat;
    
}
.wrapper>ul>li:nth-child(6){
    background: url(https://p3.lefile.cn/product/adminweb/2019/07/18/3a015675-32fd-4d36-984e-f1eb688bf5b7.jpg) center no-repeat;
    
}
.wrapper>ul>li:nth-child(7){
    background: url(https://p4.lefile.cn/product/adminweb/2019/07/22/f4fc148a-1f20-47ab-801f-16091d73ea90.jpg) center no-repeat;
}
.swiper-button-prev{
    cursor: pointer;
    width: 41px;
    height: 69px;
    background-image: url(https://shop.lenovo.com.cn/images/icon.png);
    background-repeat: no-repeat;
    background-position: -88px -192px;
    display: none;
    position: absolute;
    left: 0;
    top: 180px;
    outline: none ;
}
.swiper-button-next{
    cursor: pointer;
    width: 41px;
    height: 69px;
    background-image: url(https://shop.lenovo.com.cn/images/icon.png);
    background-repeat: no-repeat;
    background-position: -130px -192px;
    display: none;
    position: absolute;
    right: 0;
    top: 180px;
    outline: none ;
}
.banner:hover .swiper-button-next , .banner:hover .swiper-button-prev{
    display: inline-block;
}